An attempt to start the Automation Engine (AE) Work Processes (WPs), results the error being logged in the service manager log:
U00022022 Process 'UC4 WP1' ended, exit code='60'
The WP logs contain database connection failure message -
U00003590 UCDB - DB error: 'could not connect to the server: Connection refused
Is the server running on host "database-server" (10.0.0.1) and accepting
TCP/IP connections on port 5432?
Automic Workload Automation: 12.3, 21 and higher
Permissions for the user starting the services on the product install directories
Firewall ports for the Automic server and the database
Database status and availability
1) Check your permissions for the user starting AE.
2) Ensure your firewall is configured correctly for the AE ports and the database communication port
3) Ensure the "ucsrv.ini" file exists in the automation engine's bin directory with appropriate permissions for the user who's starting the service.